CN1048912A - Fluid speed changing - Google Patents
Fluid speed changing Download PDFInfo
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- CN1048912A CN1048912A CN 90104717 CN90104717A CN1048912A CN 1048912 A CN1048912 A CN 1048912A CN 90104717 CN90104717 CN 90104717 CN 90104717 A CN90104717 A CN 90104717A CN 1048912 A CN1048912 A CN 1048912A
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Abstract
Fluid speed changing is a kind of fluid speed changing that changes output torque with the load size variation, it can produce the same stable output speed with gear-shift transmission, can also equally choose at random output speed to buncher, it is made up of oil hydraulic pump, automatic pressure control, Flow valve, hydraulic driver etc.Wherein automatic pressure control is to be made of the pressure regulator valve that piston is controlled, and the present invention has been merged electrodeless and utmost point speed changer is arranged is one, and speed change is flexible, and using scope is wide, can also realize soft start.
Description
The invention belongs to a kind of speed changer.
Now the transmission gear shift device that generally uses is based on the gear rotation, and some other rotating manner is also arranged.As: hydromechanical transmission, friction or buncher etc. all are adopt to change the principle of driving wheel and driven wheel diameter and the purpose that reaches speed change.At known a kind of Motor Vehicle high efficient driving system (Chinese patent CN1037021A) is the high efficient driving system that is used for Motor Vehicle or vessel, and it also can be used for various machineries with independent electrodeless variable-speed device.Itself structure of this buncher that its structure is made up of plunger hydraulic buncher and speed regulating mechanism thereof is just complicated, speed ratio is also little, add that speed regulating mechanism can not produce too big speed ratio yet, also be difficult for it is limited concrete revolution, use so be only limited to as general buncher.
The purpose of this invention is to provide and a kind ofly change the fluid speed changing of output torque with the load size variation, it can produce the same stable output speed with gear-shift transmission.Can also equally choose at random output speed to buncher.
The object of the present invention is achieved like this, comprises oil hydraulic pump automatic pressure control, Flow valve in the fluid speed changing.Hydraulic driver wherein automatic pressure control is made up of pressure regulator valve and piston.At first power imports input shaft into, drives hydraulic pump works, and the pressured fluid of generation is by the pressure of pressure regulator valve qualification liquid, and the flow of Flow valve controlling liquid is located at the piston between Flow valve and the pressure pusher, adjusts the pressure that pressure regulator valve limited.Make pressure regulator valve and piston form the automatic pressure control that changes pressure with the load size variation, driving output shaft by pressure pusher rotates, the working principle of automatic pressure control is as follows: when liquid passes through pressure regulator valve, when Flow valve enters hydraulic driver, having only pressure bigger than load resistance of generation could promote output shaft rotates, if the little output shaft that can not promote of the pressure ratio load resistance that pressure regulator valve limits rotates, liquid is at this moment hopeless, back-pressure will appear, when back-pressure rise to the pressure that limits with pressure regulator valve when identical liquid overflow from pressure regulator valve, be located at the piston between Flow valve and the pressure pusher, can not be raised to the pressure that limits with pressure regulator valve when identical in back-pressure, regulating pressure regulator valve raises till exceeding this pressure reduction than load resistance the pressure of pressure regulator valve qualification, that is to say that the pressure that pressure regulator valve limits always exceeds this pressure reduction than the pressure of piston present position, if load strengthens, piston position pressure increases, pressure reduction reduces the piston motion increasing between piston and the pressure regulator valve, the pressure recovery that pressure regulator valve limits, pressure reduction between piston and the pressure regulator valve, in like manner, if load reduces, the pressure of piston position descends, pressure reduction between piston and the pressure regulator valve increases, piston reclaims, reduce the former pressure reduction of pressure recovery that pressure regulator valve limits, this pressure reduction that automatic pressure control limited has reached the purpose that changes output torque with the load size variation, the pressure reduction that above-mentioned automatic control regulator limited has been arranged, as long as Flow valve is controlled accurately, will obtain stable any revolution.
Pressure pusher can adopt impeller propelled device or piston pusher.The impeller propelled device is rushed down mouthful etc. by casing, impeller, blade, spout, row to be formed, and liquid enters casing from spout, under the effect of blade, promotes wheel rotation, and the liquid between the blade rushes down a mouthful decompression row, and impeller drives output shaft and rotates.
Piston pusher is made up of shunt, piston, bent axle etc., and liquid at first enters shunt, and it distributes the liquid to the piston in different motion stage, promotes the output shaft motion.Also emit simultaneously the liquid in the different motion step piston.Shunt comprises discharge pipe, shunting disk, the end seat on the cover and is located at gateway that links to each other with piston and the supplying tube of taking at the end.Shunting disk is the space dimidiation in the cover, half communicates with discharge pipe, half communicates with supplying tube, shunting disk is provided with tap hole, and the blade on the hole, and at first liquid enters the side on the shunting disk upper clapboard in the cover by supplying tube, tap hole from shunting disk enters the piston gateway, piston has also forwarded the position of leaving this piston gateway under the effect of shunting disk blade in tap hole, for next piston continues to pour hydraulic pressure after dashing and expiring.When shunting disk went to and dashes full hydraulic piston gateway and communicate with the tap hole of dividing plate opposite side, liquid was by the discharge of the floss hole on cover piston, and dividing plate and shunting disk are connected as a single entity.
The present invention utilizes automatic pressure control that output torque is changed with the load size, and having occurred merging electrodeless variable-speed and utmost point speed change being arranged is the advantage of one, and its speed change is convenient, flexible; can not produce bump, not fragile, can produce stable rotating speed; excessive as load; when overburdening occurring, pressure regulator valve can play a protective role, and bleeds off liquid and is not damaged to guarantee machinery; in use; can realize soft start by Flow valve, start the use power of motor or motor, save the energy with reduction.Because the present invention is made up of some simple devices, so it is simple in structure, makes maintenance and also make things convenient for, it has simplified manufacturing process, has improved effect.The speed ratio that the present invention can produce is also very big, as long as oil hydraulic pump can produce great hydraulic flow, just can obtain corresponding rotating speeds.In sum, the present invention is the very wide speed changer of a kind of using scope.
Figure one is the flow chart of the fluid speed changing of proposition according to the present invention.
Describe the details and the working condition of the concrete device of the present invention's proposition in detail below in conjunction with figure one.
Input shaft (7) drives oil hydraulic pump (1) and rotates the pressure that the hydraulic pressure that produces passes through pressure regulator valve (2) qualification liquid, and Flow valve (3) is regulated flow.It uses the fixedly pressure reduction between keeping at 2 by piston (4) control pressure regulator valve (2) decomposition pressure automatic control regulator (9), presses the purpose that changes with load in reaching.
Liquid enters hydraulic driver (5), drives output shaft (8) and rotates, and liquid bath (6) provides enough liquid and the liquid that reclaims after using to oil hydraulic pump.
Figure two is schematic representation that the impeller propelled device in according to the present invention partly proposes.When the impeller propelled device was worked, hydraulic pressure entered in the casing (11) by spout (10), promoted blade (13) and drove liquid wheel (12) and rotate, and the row of going to rushes down mouthful (14) and puts pressure, and leaf groove (6) recovery is arranged down, and support (24) is the impeller propelled device fixedly.
Figure three is schematic representation that the shunt in the piston pusher part in according to the present invention proposes.
Piston pusher is by shunt, and hydraulic pressure is assigned to each piston.Simultaneously, waste liquid discharged and reach and promote the bent axle motion.At first, hydraulic pressure enters in the cover (16) by supplying tube (15), one side of dividing plate (17) by with shunting disk (18) on tap hole (19) enter piston gateway (21), after piston dashes and expires, under the effect of the blade (20) of shunting disk (18) in tap hole (19), also forwarded the position of leaving this piston gateway (21) to, for next piston continues to pour hydraulic pressure.Shunting disk (18) goes to the tap hole (22) of the piston gateway that dashes full hydraulic pressure and dividing plate opposite side when communicating, and liquid is by the discharge of the floss hole (23) on the cover (16) piston.Finish a stroke.Shunting disk is that the supplying tube of sitting on (25) with the floss hole (23) on the cover (16) and the end (15) is that the garden heart rotates.
The present invention applicable various the have utmost point or electrodeless variable-speeds.With simple traffic tool bicycle is example, by adorning an oil hydraulic pump, drives with pedal on the axis of bicycle, rear flywheel is changed into hydraulic driver, press upward pressure automatic control regulator and Flow valve between it, the control handle of Flow valve along growing on the handlebar, is convenient to control with flexible cord, divide into a liquid bath at oil hydraulic pump, just become an electrodeless variable-speed bicycle, it makes simple, has saved chain and speed change gear, speed change is flexible, and is not fragile.If on the pressure regulator valve of automatic pressure control,, be used to store the muscle power that unnecessary energy can also be saved the people by a piston.If oil hydraulic pump drives with petrol engine, be exactly motorcycle, also can reach good effect if be used on the automobile.The present invention can also be used on the lathe, as lathe, use the driven by motor oil hydraulic pump, directly driving main shaft with hydraulic driver rotates, with the accurate control flow rate of Flow valve, just can replace complicated gear graduation and lubrication system, it have noise low, make advantages such as simple, conservation, raising effect, volume in light weight are little, the present invention can also make retarder, accelerator of various use or the like.
Claims (4)
1, a kind of fluid speed changing, it comprises oil hydraulic pump, automatic pressure control, flow control valve, hydraulic driver, it is characterized in that automatic pressure control is to be made of pressure regulator valve and control piston.
2, fluid speed changing according to claim 1 is characterized in that hydraulic driver is the impeller propelled device that is made of casing, impeller, output shaft.
3, fluid speed changing according to claim 1 is characterized in that hydraulic driver is the piston pusher that is made of shunt, piston and bent axle.
4, it is characterized in that according to claim 1,3 described fluid speed changings the shunt in the piston pusher is synchronous operated by the pressured fluid promotion shunting disk and the bent axle of the piston of coming in and going out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104717 CN1048912A (en) | 1990-07-25 | 1990-07-25 | Fluid speed changing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104717 CN1048912A (en) | 1990-07-25 | 1990-07-25 | Fluid speed changing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1048912A true CN1048912A (en) | 1991-01-30 |
Family
ID=4878701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90104717 Pending CN1048912A (en) | 1990-07-25 | 1990-07-25 | Fluid speed changing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1048912A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116629C (en) * | 1998-05-18 | 2003-07-30 | 武汉三联水电控制设备公司 | Full-digital microcomputer-controlled water turbine speed regulator |
| CN100447404C (en) * | 2002-12-13 | 2008-12-31 | 船舶通用涡轮有限公司 | Hydraulic speed-increasing transmission for water current powered turbine |
| CN103104673A (en) * | 2011-11-10 | 2013-05-15 | 陈高明 | Oil drive type automobile automatic continuously variable transmission |
| CN105782386A (en) * | 2016-03-30 | 2016-07-20 | 任宝全 | Manufacture method for liquid flow adjustment speed regulator |
-
1990
- 1990-07-25 CN CN 90104717 patent/CN1048912A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116629C (en) * | 1998-05-18 | 2003-07-30 | 武汉三联水电控制设备公司 | Full-digital microcomputer-controlled water turbine speed regulator |
| CN100447404C (en) * | 2002-12-13 | 2008-12-31 | 船舶通用涡轮有限公司 | Hydraulic speed-increasing transmission for water current powered turbine |
| CN103104673A (en) * | 2011-11-10 | 2013-05-15 | 陈高明 | Oil drive type automobile automatic continuously variable transmission |
| CN105782386A (en) * | 2016-03-30 | 2016-07-20 | 任宝全 | Manufacture method for liquid flow adjustment speed regulator |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |